idlehomescreen/xmluirendering/uiengine/src/xnviewcontroladapter.cpp
branchRCL_3
changeset 83 5456b4e8b3a8
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82:5f0182e07bfb 83:5456b4e8b3a8
       
     1 /*
       
     2 * Copyright (c) 2002-2004 Nokia Corporation and/or its subsidiary(-ies).
       
     3 * All rights reserved.
       
     4 * This component and the accompanying materials are made available
       
     5 * under the terms of "Eclipse Public License v1.0"
       
     6 * which accompanies this distribution, and is available
       
     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     8 *
       
     9 * Initial Contributors:
       
    10 * Nokia Corporation - initial contribution.
       
    11 *
       
    12 * Contributors:
       
    13 *
       
    14 * Description:  View control adapter
       
    15 *
       
    16 */
       
    17 
       
    18 // System includes
       
    19 
       
    20 // User includes
       
    21 #include "xnappuiadapter.h"
       
    22 #include "xnuiengine.h"
       
    23 #include "xnnodepluginif.h"
       
    24 #include "xnnode.h"
       
    25 
       
    26 #include "xndomdocument.h"
       
    27 #include "xndomnode.h"
       
    28 #include "xnproperty.h"
       
    29 
       
    30 #include "xnviewcontroladapter.h"
       
    31 
       
    32 // Constants
       
    33     
       
    34 // ============================ LOCAL FUNCTIONS ================================
       
    35 // -----------------------------------------------------------------------------
       
    36 // ResetGrabbingL
       
    37 // Removes recursively grabbing controls
       
    38 // -----------------------------------------------------------------------------
       
    39 //
       
    40 static void ResetGrabbingL( CXnControlAdapter* aControl, 
       
    41     const TPointerEvent& aEvent ) 
       
    42     {       
       
    43     if ( aControl )
       
    44         {
       
    45         CCoeControl* grabber( aControl->GrabbingComponent() );
       
    46         
       
    47         if ( grabber )
       
    48             {
       
    49             // cancel longtap detector before reset grabbing.
       
    50             CAknLongTapDetector* detector = aControl->LongTapDetector();
       
    51             if ( detector && detector->IsActive() )
       
    52                 {
       
    53                 detector->Cancel();
       
    54                 }
       
    55             grabber->IgnoreEventsUntilNextPointerUp();
       
    56             
       
    57             aControl->CCoeControl::HandlePointerEventL( aEvent );
       
    58             
       
    59             CXnControlAdapter* adapter = 
       
    60                 dynamic_cast< CXnControlAdapter* >( grabber );
       
    61             
       
    62             ResetGrabbingL( adapter, aEvent );
       
    63             }        
       
    64         }    
       
    65     }
       
    66 
       
    67 // ============================ MEMBER FUNCTIONS ===============================
       
    68 
       
    69 // -----------------------------------------------------------------------------
       
    70 // CXnViewControlAdapter::NewL
       
    71 // Symbian static 1st phase constructor
       
    72 // -----------------------------------------------------------------------------
       
    73 //
       
    74 CXnViewControlAdapter* CXnViewControlAdapter::NewL( CXnNodePluginIf& aNode )
       
    75     {
       
    76 	CXnViewControlAdapter* self = new( ELeave ) CXnViewControlAdapter( aNode );
       
    77 
       
    78     CleanupStack::PushL( self );
       
    79     self->ConstructL( aNode );
       
    80     CleanupStack::Pop( self );
       
    81 
       
    82     return self;	
       
    83     }
       
    84 
       
    85 // -----------------------------------------------------------------------------
       
    86 // CXnViewControlAdapter::ConstructL
       
    87 // Symbian 2nd phase constructor can leave.
       
    88 // -----------------------------------------------------------------------------
       
    89 //
       
    90 void CXnViewControlAdapter::ConstructL( CXnNodePluginIf& aNode )
       
    91     {
       
    92     CreateWindowL();
       
    93     
       
    94     CXnControlAdapter::ConstructL( aNode );
       
    95 
       
    96     if( Window().SetTransparencyAlphaChannel() == KErrNone )      
       
    97         {       
       
    98         Window().SetBackgroundColor( ~0 );       
       
    99         }   
       
   100    
       
   101     Window().SetPointerGrab( EFalse );
       
   102     
       
   103     EnableDragEvents();
       
   104            
       
   105     ActivateL();
       
   106   
       
   107     SetComponentsToInheritVisibility( ETrue );
       
   108         
       
   109     iAppUi.UiStateListener().AddObserver( *this );
       
   110     
       
   111     // By default all views are invisible during construction phase    
       
   112     CXnDomStringPool* sp( aNode.Node().DomNode()->StringPool() );
       
   113     
       
   114     CXnProperty* prop = CXnProperty::NewL(
       
   115         XnPropertyNames::style::common::KDisplay, 
       
   116         XnPropertyNames::style::common::display::KNone,
       
   117         CXnDomPropertyValue::EString, *sp );
       
   118     CleanupStack::PushL( prop );    
       
   119     
       
   120     aNode.SetPropertyWithoutNotificationL( prop );
       
   121     CleanupStack::Pop( prop );    
       
   122     }
       
   123     
       
   124 // -----------------------------------------------------------------------------
       
   125 // CXnViewControlAdapter::CXnViewControlAdapter
       
   126 // C++ default constructor
       
   127 // -----------------------------------------------------------------------------
       
   128 //
       
   129 CXnViewControlAdapter::CXnViewControlAdapter( CXnNodePluginIf& aNode ) 
       
   130     : iNode( aNode ), iAppUi( static_cast< CXnAppUiAdapter& >( *iAvkonAppUi ) )    
       
   131     {    
       
   132     }
       
   133 
       
   134 // -----------------------------------------------------------------------------
       
   135 // CXnViewControlAdapter::~CXnViewControlAdapter
       
   136 // C++ destructor
       
   137 // -----------------------------------------------------------------------------
       
   138 //
       
   139 CXnViewControlAdapter::~CXnViewControlAdapter()
       
   140     {
       
   141     iAppUi.UiStateListener().RemoveObserver( *this );      
       
   142     }
       
   143 
       
   144 // -----------------------------------------------------------------------------
       
   145 // CXnViewControlAdapter::MakeVisible
       
   146 //
       
   147 // -----------------------------------------------------------------------------
       
   148 // 
       
   149 void CXnViewControlAdapter::MakeVisible( TBool aVisible )
       
   150     {
       
   151     if ( aVisible == IsVisible() )
       
   152         {
       
   153         return;
       
   154         }
       
   155     
       
   156     if ( aVisible )
       
   157         {
       
   158         if ( !iAppUi.UiEngine().IsEditMode() )
       
   159             {
       
   160             Window().SetPointerGrab( ETrue );
       
   161             }
       
   162         }
       
   163     else
       
   164         {
       
   165         Window().SetPointerGrab( EFalse );
       
   166         
       
   167         ResetGrabbing();
       
   168         }
       
   169         
       
   170     CCoeControl::MakeVisible( aVisible );    
       
   171     }
       
   172 
       
   173 // -----------------------------------------------------------------------------
       
   174 // CXnViewControlAdapter::Draw
       
   175 //
       
   176 // -----------------------------------------------------------------------------
       
   177 //
       
   178 void CXnViewControlAdapter::Draw( const TRect& aRect ) const
       
   179     {    
       
   180     SystemGc().Clear( aRect );        
       
   181     }
       
   182 
       
   183 // -----------------------------------------------------------------------------
       
   184 // CXnViewControlAdapter::HandlePointerEventL
       
   185 //
       
   186 // -----------------------------------------------------------------------------
       
   187 //
       
   188 void CXnViewControlAdapter::HandlePointerEventL( 
       
   189     const TPointerEvent& aPointerEvent )
       
   190     {    
       
   191     if ( iForegroundStatus != EBackground )
       
   192         {
       
   193         iAppUi.UiEngine().DisableRenderUiLC();
       
   194             
       
   195         CXnControlAdapter::HandlePointerEventL( aPointerEvent );
       
   196         
       
   197         iAppUi.UiEngine().RenderUIL();
       
   198         
       
   199         CleanupStack::PopAndDestroy();    
       
   200         }
       
   201     }
       
   202 
       
   203 // -----------------------------------------------------------------------------
       
   204 // CXnViewControlAdapter::ResetGrabbing()
       
   205 // 
       
   206 // -----------------------------------------------------------------------------
       
   207 //
       
   208 void CXnViewControlAdapter::ResetGrabbing()
       
   209     {
       
   210     TPointerEvent event;
       
   211     
       
   212     event.iModifiers = 0;
       
   213     event.iPosition = TPoint();
       
   214     event.iParentPosition = TPoint();
       
   215     event.iType = TPointerEvent::EButton1Up;
       
   216     
       
   217     TRAP_IGNORE( ResetGrabbingL( this, event ) );        
       
   218     }
       
   219 
       
   220 // -----------------------------------------------------------------------------
       
   221 // CXnViewControlAdapter::NotifyForegroundChanged()
       
   222 // 
       
   223 // -----------------------------------------------------------------------------
       
   224 //
       
   225 void CXnViewControlAdapter::NotifyForegroundChanged( TForegroundStatus aStatus )
       
   226     {
       
   227     iForegroundStatus = aStatus;
       
   228     if ( aStatus == EBackground || aStatus == EPartialForeground )
       
   229         {
       
   230         ResetGrabbing();
       
   231         }
       
   232     }
       
   233 
       
   234 // -----------------------------------------------------------------------------
       
   235 // CXnViewControlAdapter::NotifyLightStatusChanged()
       
   236 //  
       
   237 // -----------------------------------------------------------------------------
       
   238 //
       
   239 void CXnViewControlAdapter::NotifyLightStatusChanged( TBool /*aLightsOn*/ )
       
   240     {    
       
   241     }
       
   242 
       
   243 // -----------------------------------------------------------------------------
       
   244 // CXnViewControlAdapter::NotifyInCallStateChaged()
       
   245 // 
       
   246 // -----------------------------------------------------------------------------
       
   247 //
       
   248 void CXnViewControlAdapter::NotifyInCallStateChaged( TBool /*aInCall*/ )
       
   249     {    
       
   250     }
       
   251 
       
   252 // End of file